World’s Biggest Offshore Drilling Companies

10. Valaris (Ensco Rowan) - $1.7bn The UK-based Valaris, that used to be known as Ensco Rowan until July 2019, earned $1.7bn in revenues in 2018 to make the top 10 of our list. This figure meant a 7.48 % increase in offshore drilling contractor’s revenue...

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